September weather forecastDonsol, Philippines

Weather in September

The first month of the autumn, September, is also a moderately hot month in Donsol, Philippines, with an average temperature varying between 25.5°C (77.9°F) and 29.3°C (84.7°F).

Temperature

The transition into September notes an average high-temperature of a still warm 29.3°C (84.7°F), revealing a mild distinction from the 29.2°C (84.6°F) in August. Donsol marks an average drop to a still moderately hot 25.5°C (77.9°F) during nighttime in September, following the high of the day.

Heat index

During September, the heat index is evaluated at a very hot 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Donsol, the average relative humidity in September is 82%.

Rainfall

In September, in Donsol, the rain falls for 24.5 days. Throughout September, 185mm (7.28") of precipitation is accumulated. Throughout the year, in Donsol, there are 220.2 rainfall days, and 1224mm (48.19") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 28.9°C (84°F).
Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In September, the average length of the day in Donsol, Philippines, is 12h and 12min.
On the first day of September, sunrise is at 5:34 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 5:36 pm PST.

Sunshine

The average sunshine in September is 7.8h.

UV index

The months with the highest UV index in Donsol, Philippines, are February through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Heed this! UV intensity is much stronger when reflected off sand and water.